I got the sense from the trailer that Kristen Wiig chickened out and DIDN'T shrink and the movie was going to be about Matt Damon regretting his decision to become small, or trying to convince her to join him or...?

It feels like a satire on the tiny house phenomenon, which is SO bougie. Only rich people can afford to live small. Everything felt very white picket fence/astroturf/hegemonic riche in the downsized film. Not a future with room for us in it.